Electric power has the advantage of running machinery efficiently and continuously. Electric power can be moved easily once transmission lines are up and running. They last a long time and don't need much maintenance.
You can find a different electrician's advice. First, make sure the electrician you choose is a member of a union. This will give you peace of mind that they have the right training. A problem can't be fixed if it's buried so deep that no one can get to it.
Electric power can be moved easily once the wires are installed and operational. They last for years and don't need much or any maintenance. The advantage of electric power is that it can be used to power machinery continuously and reliably.
If your general contractor can't recommend a good electrician, you could try Easefix, the most reliable on line service or an electrical supply store in your area.